http://www.seomofo.com/snippet-optimizer.html
Title And Meta Description Characters Counter For Website And Blog:
I had just set 147 as a meta description, as now a days many author applied for Google Authorship Program, As profile picture of a author will will appear just beside meta description so in that case it is recommended to use only 147 characters. If you don't applied for such a program than you can set meta description up to 155 characters.
search engine it will show only 67 characters of your title, for better SEO it is comparably for any individual that they must be formulate title of post in 67 characters only with having effective keyword that match with your post. Now Meta description is also important for every Website/Blog owners, meta description is a short summery of your web page. In search engine meta description will show only up to 155 characters, You must have to add meta description accordingly as its a most important.
